. >>> we will turn to gabby giffords and her appeal for gun control on capitol hill. a gunshot survivor herself, her message to law makers was heard loud and clear. >>> just days before the super bowl sunday, the push to protect football players from serious head injuries. can new high-tech helmet designs really make a difference? let's hope so. >> let's hope so. whatever they can do is probably worth a shot. >>> later this half hour, what you did not know about jimmy kimmel's best friend and bandleader, cleto escobado. i took five years of spanish all i can say is hola and cervesa. he came from a very humble background. we get into a little bit of this life backstory there. impressive how he made, done so well. >> you can say cervesa, which is beer. >> yeah, cervesa, the fundamentals. >>> but first, turning to a serious story. the hostage ordeal in rural alabama. dozens gather at a church near the scene where the standoff is taking place last night. >> while they prayed for a peaceful end to the situation, authorities warn it could drag fn for awhile. abc's mark gree